With a lot of websites going down the shitter in an attempt to monetize (looking at you, Reddit), I'm wondering where some nice places are online. Nice whether in UI, the community, or really just in general. Below is a small list off the top of my head.
Tildes, because of high quality discussion.
Disroot. It's a slew of useful tools, available for free, while respecting privacy. Genuinely really useful, lots of utilities, good documentation, and a really nice community.
Wikipedia. It's Wikipedia, end of.
Mastodon. This one wholly depends on your instance, but on most(?) the people are nice, and the environment is a lot less argumentative.
Hacker News, high quality discussion over a fair few topics. Very active, too.